Green Bay Packers' A.J. Hawk (50) stretches with teammates during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Pittsburgh Steelers center Doug Legursky (64), guard Dorian Brooks (77), and other linemen listen to a coach during practice on Friday, Feb. 4, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers linebacker Chris Ellis (90) talks with safety Da'Mon Cromartie-Smith (42) during practice on Friday, Feb. 4, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Green Bay Packers players stretch prior to their practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers coach Mike McCarthy, right, and defensive coordinator Dom Capers, left, watch practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers coach Mike McCarthy, right, talks with Aaron Rodgers, left, during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Aaron Rodgers looks to throw during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Pittsburgh Steelers linebacker Stevenson Sylvester (55) stretches during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers cornerback Ike Taylor stretches during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers head coach Mike Tomlin watches his players during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers safety Troy Polamalu (43) laughs as he talks with teammates during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers defensive end Brett Keisel stretches during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) and offensive tackle Jonathan Scott (72) stretch during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Green Bay Packers defensive coordinator Dom Capers watches practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Pittsburgh Steelers head coach Mike Tomlin, center, jokes with players during practice on Thursday, Feb. 3, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Green Bay Packers' Brandon Jackson catches a pass during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Matt Wilhelm runs through drills during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Mason Crosby (2) and Matt Flynn, right, throw during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers coach Mike McCarthy, right, talks with Aaron Rodgers during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Clay Matthews (52) prepare for practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Aaron Rodgers throws during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Charles Woodson (21), Brandon Underwood, center, and Josh Gordy (40) run during during practice, Thursday, Feb. 3, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Pittsburgh Steelers head coach Mike Tomlin walks by wide receiver Emmanuel Sanders (88) during practice on Wednesday, Feb. 2, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Green Bay Packers' Erik Walden, right, is helped by a trainer during practice, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Scott Wells, right, and Josh Sitton, left, use sand bags during drills in practice, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Pittsburgh Steelers wide receiver Hines Ward stretches during practice on Wednesday, Feb. 2, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Green Bay Packers players practice at a high school's indoor facilty, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Clay Matthews (52) stretches with teammats during practice, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' James Starks runs with the ball during practice, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Pat Lee throws during practice, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers' Aaron Rodgers laughs with teammates during practice, Wednesday, Feb. 2, 2011 in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Green Bay Packers coach Mike McCarthy, left, and general manager Ted Thompson, right, talks during practice, Wednesday, Feb. 2, 2011, in Dallas. Green Bay will face the Pittsburgh Steelers in the NFL football Super Bowl XLV Sunday. (AP Photo/Eric Gay)

Pittsburgh Steelers wide receiver Antonio Brown practices on Wednesday, Feb. 2, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)

Pittsburgh Steelers wide receiver Hines Ward stretches during practice on Wednesday, Feb. 2, 2011, in Fort Worth, Texas. The Steelers will play the Green Bay Packers in NFL football Super Bowl XLV Sunday, Feb. 6. (AP Photo/Mark Humphrey)